When I create an appointment at 9:00 in NYC (US Eastern timezone), my guest in London (GMT) has to attend it at 14:00 his time. However, the US and Britain switch to daylight saving time at different moments (2015-03-08 vs 2015-03-29). This means that my guest has to attend the meeting at 13:00 his time for the next 3 weeks.
Google handles this seamlessly, maybe even too seamlessly: my guest is not notified that his meeting has shifted by an hour.
This is not very good (he may have other appointments not affected by the DST lunacy). Ideally, the user should be notified whenever an appointment's local time changes.
What can be done about it?